The Screw,close Tolerance, cataloged under National Stock Number 5305-00-435-8993, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-435-8993 |
| Primary Part Number | CA27034-3-4 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.744 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN |
| Thread Length | 0.388 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN |
| Locking Feature | DETENT BALL HEAD |
| Thread Class | 3A A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 202-15503-3-4 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| CA27034-3-4 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| AS146S3-4 | 5/2 Secondary reference U.S. Government activity |
| 202-15503-3-4 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-00-435-8993 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-435-8993 has 2 manufacturer part numbers on file: 202-15503-3-4 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), CA27034-3-4 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA27034-3-4: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.744 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN; Thread Length: 0.388 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.